• Wilcox Door Service Inc. - Richards-Wilcox Custom Cranes

• Advanced Insulation Concepts, Inc.

• AeroSystems Corporation

• Atomic Industries, Inc.

• Composite Door Industries

• D. P. Industries

• D.P. Industries Hangar Doors Specialists

• DBCi Door & Building Components

• Door Engineering and Manufacturing Company

• Door-Man Manufacturing Company

• Door-Man Mfg. Co.

• Doors & Building Components Inc

• Fendor Glass & Aluminum (1993) Inc

• Fimbel Door Corp.

• FrenchPorte Garage Doors

• Garaga Doors (2000) Inc.

• Garaga, garage doors, Inc.

• Hi-Fold Door Corporation

• Indo Tech Inc.

• Milcor/Lima Register Co.

• NERGECO USA

• Steel-Craft Door Products Ltd.